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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Montgomery County Municipal Utility District 9

Naphthalene is a polycyclic aromatic hydrocarbon, or PAH, released from combustion of fossil fuels and waste incinerators, and also used as a moth repellent. PAHs increase the risk of cancer; damage the immune, nervous and reproductive systems; and can harm developing fetuses.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016ND10ND
2017ND20ND
2018ND10ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-23AC60690ND
2014-07-23AC60684ND
2014-07-23AC60735ND
2015-03-13AC84442ND
2015-03-13AC84517ND
2015-11-23AD14459ND
2016-10-18AD53568ND
2017-09-14AD96293ND
2017-09-14AD96370ND
2018-01-10AE08625ND
2019-08-06AE77269ND